Reader dilemma- bungalow bedroom

This color dilemma comes from Jen, a reader in Pittsburgh, Pennsylvania. She and her husband have purchased a Cape Cod bungalow (congrats!), and want to spruce up their bedroom before they move in.

The bedroom, before the wood paneling was torn out, and my "mock-up" of what it will approximately look like with dry wall.
My dilemma? With us moving into the house within two weeks, I was wondering about colours for the walls; perhaps putting a richer, darker tone on the "bottom" part of the wall that is straight and then a lighter version on the sloped part?

I do *LOVE* colour, having spent too long in apartments and too long in an ad agency that apparently thought battleship grey cubicles, walls, and carpeting inspired creativity. The room's architecture alone makes it fun, as does its large size (straight walls on the sides, before the ceiling begins to slope, are about 4' and the slope is 5.5').

But, I'm not sure if I really want a contrasting colour for the walls and window coverings. For our bedroom, I want something soothing, enveloping, and I guess more elegant than fun. While a contrast might be very pretty, the room is of such size that the bed would get lost and we'd run the risk of losing continuity, flow, and that feeling of peaceful, cozy comfort we'd like for our bedroom.
Here's the bedding and furniture: eclectic modern, kind of 40's/50's swank with a splash of warm and cozy Moroccan.
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The mosquito netting was originally brought in to add some color to the room. The plum-wine brought out the similar tones in the duvet cover; otherwise, it appeared very orange/rust. Jen loves red, so we should keep this in mind.

Here's a close-up of the bedding, a duvet cover embroidered silk shantung. I can usually pull colors from favorite pieces, but since the colors appear so grayed-out in this photo, I think we should stick with the sunny shot above, instead.
I tried to hunt down some photos of rooms with dormered ceilings, to try and get a sense of how others have dealt with this architectural feature.
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Okay, not exactly low ceilings, but they are pitched! This has that sort of warm, cozy feeling with the darker persimmon colored straight walls contrasted against the white ceiling.
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I thought this treatment was interesting, with the upper walls tinted a soft color, and the base walls left creamy white. Nice, but not what I'm looking for...
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Here an example I found of a darker base wall paired with a lighter sloped wall.I think it works nicely here to define the work space.
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Here's another room with sloped upper walls, and darker base walls. Just trying to get as feel for what the split wall color treatment looks like.
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And this is rather off-topic, but I just liked how the words were incorporated into the slope of the walls.

So, what are my thoughts? The desired mood is cozy, elegant, comfortable. So, where do we go from here?
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Taking inspiration from this Moroccan restaurant, Babouche, with its deep chocolate browns, golds, lush fabric, soft lighting... it's a big space, but doesn't it feel cozy and inviting? This is the desired feeling, right?

And then, the crowing glory of my search...
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A red-walled room with sloped walls. Can you stand it?

I'm thinking, deep rich crimson red, something really edible and sophisticated. It will look sparkly and vibrant in the day, but soothing and elegant at night, with soft lighting. If an entire room in red is too over the top, then perhaps a warm chocolate or coffee brown, with lots of red undertones. Other robust exotic colors could include eggplant or wine purple. Any of those could be lovely.

Unless the desired effect is to break up the space, I wouldn't chop it up with different colors. If the ceiling feels too low, I would paint it the color of the walls, too. Definitely go for wood flooring eventually. Oh, and I would ditch the mosquito netting, as it will just draw attention to the low ceilings. Consider instead, perhaps, draping rich fabrics across the sloped walls instead.

But I have monopolized this post long enough. I want to hear what you all think. Can you help out Jen and suggest what she should do with her bedroom?